package com.hh.communication;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URLEncoder;
import java.util.ArrayList;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.HTTP;

import android.util.Log;

import com.hh.utility.PuException;

public class PcHttpClient {

	public enum RequestMethod {GET,POST}

	private int _mConnexionTimeOut=3000;
	private int _mConnexionMaxTimeOut=5000;

	private HttpParams _mHttpParameters;
	private ArrayList <NameValuePair> params;
	private ArrayList <NameValuePair> headers;
	private int _mResponseCode;
	private String _mMessageStatus;
	private String _mResponse;
	private HttpEntity _mHttpEntity;


	public String getResponse() {
		return _mResponse;
	}

	public PcHttpClient(){

		_mHttpParameters = new BasicHttpParams();
		HttpConnectionParams.setConnectionTimeout(_mHttpParameters, _mConnexionTimeOut);
		HttpConnectionParams.setSoTimeout(_mHttpParameters, _mConnexionMaxTimeOut);

		params = new ArrayList<NameValuePair>();
		headers = new ArrayList<NameValuePair>();
	}

	public void setConnexionTimeOut(int _mConnexionTimeOut) {
		this._mConnexionTimeOut = _mConnexionTimeOut;
	}

	public void setConnexionMaxTimeOut(int _mConnexionMaxTimeOut) {
		this._mConnexionMaxTimeOut = _mConnexionMaxTimeOut;
	}

	public String getMessageStatus() {
		return _mMessageStatus;
	}

	public int getResponseCode() {
		return _mResponseCode;
	}

	public void AddParam(String name, String value)
	{
		params.add(new BasicNameValuePair(name, value));
	}
	
	public void AddParam(ArrayList<NameValuePair> pListOfParams)
	{
		params=pListOfParams;
	}

	public void AddHeader(String name, String value)
	{
		/*
		 * client.AddHeader("Content-Type", "application/json");
		 */
		headers.add(new BasicNameValuePair(name, value));
	}

	public void Execute(String url,RequestMethod method) throws Exception
	{
		switch(method) {
		case GET:
		{
			//add parameters
			String combinedParams = "";
			if(!params.isEmpty()){
				combinedParams += "?";
				for(NameValuePair p : params)
				{
					String paramString = p.getName() + "=" + URLEncoder.encode(p.getValue(),"UTF-8");
					if(combinedParams.length() > 1)
					{
						combinedParams  +=  "&" + paramString;
					}
					else
					{
						combinedParams += paramString;
					}
				}
			}

			HttpGet request = new HttpGet(url + combinedParams);

			//add headers
			for(NameValuePair h : headers)
			{
				request.addHeader(h.getName(), h.getValue());
			}

			executeRequest(request, url);
			break;
		}
		case POST:
		{
			HttpPost request = new HttpPost(url);

			//add headers
			for(NameValuePair h : headers)
			{
				request.addHeader(h.getName(), h.getValue());
			}

			if(!params.isEmpty()){
				request.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
			}

			executeRequest(request, url);
			break;
		}
		}
	}

	public HttpEntity getHttpEntity(){

		return _mHttpEntity;
	}
	private void executeRequest(HttpUriRequest request, String url)
	{
		HttpClient client = new DefaultHttpClient();

		HttpResponse httpResponse;

		try {
			httpResponse = client.execute(request);
			_mResponseCode = httpResponse.getStatusLine().getStatusCode();
			_mMessageStatus = httpResponse.getStatusLine().getReasonPhrase();

			_mHttpEntity= httpResponse.getEntity();

			if (_mHttpEntity != null) {

				InputStream instream = _mHttpEntity.getContent();
				_mResponse = convertStreamToString(instream);

				instream.close();
			}

		} catch (ClientProtocolException e)  {
			Log.e("EXxception : ClientProtocolException :", PuException.getExceptionMessage(e));
			client.getConnectionManager().shutdown();
			e.printStackTrace();
		} catch (IOException e) {
			Log.e("EXxception : IOException :", PuException.getExceptionMessage(e));
			client.getConnectionManager().shutdown();
			e.printStackTrace();
		}
	}

	private static String convertStreamToString(InputStream is) {

		BufferedReader reader = new BufferedReader(new InputStreamReader(is));
		StringBuilder sb = new StringBuilder();

		String line = null;
		try {
			while ((line = reader.readLine()) != null) {
				sb.append(line + "\n");
			}
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				is.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return sb.toString();
	}
}
